Answer:
a=) Because Indian feudalism refers to the feudal society that made up India's social structure until The Mughal Dynasty in the 1500s. The Guptas and the Kushans played a major role in the introduction and practice of feudalism in India, and are examples of the decline of an empire caused by feudalism.
b=) The peroid of the imperial cholas 850 CE - 1250 CE) in South India was an age of continuous improvement and refinement of Dravidian art and architecture. They utilised the wealth earned through their extensive conquests in building long-lasting stone temples and exquisite bronze sculptures, in an almost exclusively Hindu cultural setting.
Sorry I only know the answer up to only b no.